The Timp 4 features:

• Balanced Cushioning platform positions your heel and forefoot at an equal distance from the ground, encourage better alignment, better form and a low-impact landing.
• Footshape comfort gives your feet more space to sit naturally and is designed to address biological differences in men's and women's feet.
• ALTRA EGO MAXOur Altra EGO Max midsole foam gives you all the light and luxurious performance with a little extra bounce and added durability.
• MAXTRACOur grippy MaxTrac outsole provides the perfect combination of grip, traction, and durability on all types of terrain.
• Quick-Dry Air Mesh upper